Tissue ablation system including guidewire with sensing element
First Claim
1. A medical device having a sensor and a device body, wherein the sensor is movable with respect to the device body.
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Accused Products
Abstract
A tissue ablation system for ablating human tissue wherein sensing and ablation procedures are performed and controlled independently. A sensing wire is positioned distally to the ablation region and is adapted to pass thorough the ablation device such that it may move with or independently of the ablation device without obstructing the surface tissue interface of the ablation energy. The ablation device can ablate a substantial portion of a circumferential region of tissue, for example at or near the location where the pulmonary vein extends from the atrium. The tissue ablation system comprises an ablation device comprised of an elongated catheter with a proximal region and a distal region and an ablation element located proximate the distal region of the catheter. A sensing device having an elongated body with a proximal portion and a distal portion is adapted to be positioned within a vessel at or near a vessel ostium, wherein the sensing device is adapted to be slidably received within a lumen of the ablation device. The sensing device, a guide wire for example, may be shaped in various configurations to allow sensing device such as electrodes disposed thereon to contact the vessel wall near the ablation region. In this fashion, the sensing and ablation procedures are de-coupled such that the sensing device does not interfere or obstruct the ablation member'"'"'s interface with the tissue.
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Citations
77 Claims
- 1. A medical device having a sensor and a device body, wherein the sensor is movable with respect to the device body.
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12. A tissue ablation system for ablating a region of tissue, the system comprising:
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a treatment device having a proximal region and a distal region and a treatment element located proximate the distal region of the treatment device; and
a sensing device having a body with a proximal portion and a distal portion, the sensing device adapted to be positioned within a vessel, wherein the sensing device is adapted to be slidably received within a lumen of the treatment device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A tissue ablation system for ablating a region of tissue, the system comprising:
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an ablation device comprised of an elongated catheter with a proximal region and a distal region and an ablation element located proximate the distal region of the catheter; and
a sensing device having an elongated body with a proximal portion and a distal portion, the sensing device adapted to be positioned within a vessel or at or near a vessel ostium, wherein the sensing device is adapted to be slidably received within a lumen of the ablation device, wherein the sensing device is adapted to slidably track side by side with the ablation device through a sheath such that the ablation element maintains engagement with the tissue when the sensing device is slidably received within the lumen of the ablation device. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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- 61. A sensing device having an elongated body with a proximal end portion and a distal end portion, the elongated body adapted to be positioned within a vessel and positionable through another device.
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76. A method of independently positioning a sensor with respect to an ablation element wherein the sensor and ablation element are part of a single device.
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77. A tissue treatment system for treating a region of tissue, the system comprising:
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a treatment device comprised of an elongated catheter with a proximal region and a distal region and a treatment element located proximate the distal region of the catheter; and
a sensing device adapted to be positioned within a vessel or at or near a vessel opening, wherein the sensing device is adapted to be slidably received within a lumen of the treatment device, wherein the sensing device is adapted to slidably track side by side with the treatment device through a sheath such that the treatment element maintains engagement with the tissue when the sensing device is slidably received within the lumen of the treatment device.
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Specification